TeV Analysis of a Source-rich Region with the HAWC Observatory: Is HESS J1809-193 a Potential Hadronic PeVatron?
Year: 2024
Type: article
Abstract: HESS J1809-193 is an unidentified TeV source, first detected by the High Energy Stereoscopic System (H.E.S.S.) collaboration. The emission originates in a source-rich region that includes several supernova remnants (SNRs) and pulsars including SNR G11.1+0.1, SNR G11.0-0.0, and the young radio pulsar PSR J1809-1917. Originally classified as a pulsar wind nebula candidate, recent studies show the peak of the TeV region overlapping with a system of molecular clouds. This resulted in the revision of the original leptonic scenario to look for alternate hadronic scenarios. Marked as a potential PeVatron candidate, this region has been studied extensively by H.E.S.S. due to its emission extending up to several tens of TeV. In this work, we use 2398 days of data from the High Altitude Water Cherenkov (HAWC) observatory to carry out a systematic source search of the HESS J1809-193 region. We were able to resolve emission detected as an extended component (modelled as a symmetric Gaussian with a 1σ radius of 0.°21) with no clear cutoff at high energies and emitting photons up to 210 TeV. We model the multiwavelength observations for the region around HESS J1809-193 using a time-dependent leptonic model and a lepto-hadronic model. Our model indicates that both scenarios could explain the observed data within the region of HESS J1809-193.
Source: The Astrophysical Journal
Authors: A. Albert, R. Alfaro, C. Alvarez, J. C. Arteaga-Velázquez, D. Avila Rojas, R. Babu, E. Belmont-Moreno, A. Bernal, M. Breuhaus, K. S. Caballero-Mora, T. Capistrán, A. Carramiñana, S. Casanova, J. Cotzomi, E. De la Fuente, D. Depaoli, N. Di Lalla, R. Diaz Hernandez, B. L. Dingus, M. A. DuVernois, C. Espinoza, K. L. Fan, K. Fang, B. Fick, N. Fraija, J. A. García-González, F. Garfias, A. Gonzalez Muñoz, M. M. González, J. A. Goodman, S. Groetsch, J. P. Harding, S. Hernández-Cadena, I. Herzog, D. Huang, F. Hueyotl-Zahuantitla, P. Hüntemeyer, A. Iriarte, V. Joshi, S. Kaufmann, A. Lara, J. Lee, H. León Vargas, A. L. Longinotti, G. Luis-Raya, K. Malone, J. Martínez-Castro, J. A. Matthews, P. Miranda-Romagnoli, J. A. Montes, J. A. Morales-Soto, E. Moreno, M. Mostafá, L. Nellen, M. Newbold, M. U. Nisa, R. Noriega-Papaqui, M. Osorio, Y. Pérez Araujo, E. G. Pérez-Pérez, C. D. Rho, D. Rosa-González, E. Ruiz-Velasco, H. Salazar, A. Sandoval, M. Schneider, J. Serna-Franco, A. J. Smith, Y. Son, R. W. Springer, O. Tibolla, K. Tollefson, I. Torres, R. Torres-Escobedo, R. Turner, F. Ureña-Mena, E. Varela, X. Wang, I. J. Watson, E. Willox, S. Yun-Cárcamo, H. Zhou
Institutions: Los Alamos National Laboratory, Universidad Nacional Autónoma de México, Universidad Autónoma de Chiapas, Universidad Michoacana de San Nicolás de Hidalgo, Michigan Technological University, Michigan State University, Max Planck Institute for Nuclear Physics, National Institute of Astrophysics, Optics and Electronics, Institute of Nuclear Physics, Polish Academy of Sciences, Benemérita Universidad Autónoma de Puebla, Universidad de Guadalajara, Stanford University, University of Wisconsin–Madison, University of Maryland, College Park, Tecnológico de Monterrey, Friedrich-Alexander-Universität Erlangen-Nürnberg, Universidad Politécnica de Pachuca, Instituto de Geofísica, University of Seoul, Instituto Politécnico Nacional, University of New Mexico, Universidad Autónoma del Estado de Hidalgo, Temple University, University of Utah, Sungkyunkwan University, Shanghai Jiao Tong University
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $4,499
Funders: National Science Foundation, U.S. Department of Energy, National Aeronautics and Space Administration, Consejo Nacional de Ciencia y Tecnología, Generalitat Valenciana, Benemérita Universidad Autónoma de Puebla, Office of National Higher Education Science Research and Innovation Policy Council, Goddard Space Flight Center, Dirección General de Asuntos del Personal Académico, Universidad Nacional Autónoma de México, Coordinación de la Investigación Científica, Institute for Cosmic Ray Research, University of Tokyo, Laboratory Directed Research and Development, Los Alamos National Laboratory
Awards: G1137351982, G1477402476, G1943778919, G201248631, G20842220, G3092080779, G3432588090, G3455266465, G4234058003, G4385750942, G4656072107, G4673649240, G4840023426, G5185440073, G5756405743, G5928845074, G5984383661, G6809838226, G6866600364, G6958583472, G6964981722, G7223072566, G726386190, G7379686924, G7757046036, G8432112341, G8651248068
OpenAlex ID: W4401734375